A243045 - cp's OEIS frontend

A243045 Largest number k such that kn/(k+n) and kn/(k-n) are integers or 0 if no such number exists.

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	12
7	0
8	24
9	18
10	15
11	0
12	60
13	0
14	0
15	60
16	48
17	0
18	36
19	0
20	60
21	42
22	0
23	0
24	168
25	0
26	0
27	54
28	84
29	0
30	120
31	0
32	96
33	66
34	0
35	210
36	180
37	0
38	0
39	78
40	360
41	0
42	105
43	0
44	132
45	180
46	0
47	0
48	336
49	0
50	75
51	102
52	156
53	0
54	108
55	66
56	168
57	114
58	0
59	0
60	660
61	0
62	0
63	504
64	192
65	0
66	132
67	0
68	204
69	138
70	420
71	0
72	504

[0, 0, 6, 12, 0, 12, 0, 24, 18, 15, 0, 60, 0, 0, 60, 48, 0, 36, 0, 60, 42, 0, 0, 168, 0, 0, 54, 84, 0, 120, 0, 96, 66, 0, 210, 180, 0, 0, 78, 360, 0, 105, 0, 132, 180, 0, 0, 336, 0, 75, 102, 156, 0, 108, 66, 168, 114, 0, 0, 660, 0, 0, 504, 192, 0, 132, 0, 204, 138, 420, 0, 504]

cp's OEIS Frontend

A243045 Largest number k such that kn/(k+n) and kn/(k-n) are integers or 0 if no such number exists.

Table of values

List of values

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	12
7	0
8	24
9	18
10	15
11	0
12	60
13	0
14	0
15	60
16	48
17	0
18	36
19	0
20	60
21	42
22	0
23	0
24	168
25	0
26	0
27	54
28	84
29	0
30	120
31	0
32	96
33	66
34	0
35	210
36	180
37	0
38	0
39	78
40	360
41	0
42	105
43	0
44	132
45	180
46	0
47	0
48	336
49	0
50	75
51	102
52	156
53	0
54	108
55	66
56	168
57	114
58	0
59	0
60	660
61	0
62	0
63	504
64	192
65	0
66	132
67	0
68	204
69	138
70	420
71	0
72	504

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	12
7	0
8	24
9	18
10	15
11	0
12	60
13	0
14	0
15	60
16	48
17	0
18	36
19	0
20	60
21	42
22	0
23	0
24	168
25	0
26	0
27	54
28	84
29	0
30	120
31	0
32	96
33	66
34	0
35	210
36	180
37	0
38	0
39	78
40	360
41	0
42	105
43	0
44	132
45	180
46	0
47	0
48	336
49	0
50	75
51	102
52	156
53	0
54	108
55	66
56	168
57	114
58	0
59	0
60	660
61	0
62	0
63	504
64	192
65	0
66	132
67	0
68	204
69	138
70	420
71	0
72	504

cp's OEIS Frontend

A243045 Largest number k such that k*n/(k+n) and k*n/(k-n) are integers or 0 if no such number exists.

Table of values

List of values

A243045 Largest number k such that kn/(k+n) and kn/(k-n) are integers or 0 if no such number exists.

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	12
7	0
8	24
9	18
10	15
11	0
12	60
13	0
14	0
15	60
16	48
17	0
18	36
19	0
20	60
21	42
22	0
23	0
24	168
25	0
26	0
27	54
28	84
29	0
30	120
31	0
32	96
33	66
34	0
35	210
36	180
37	0
38	0
39	78
40	360
41	0
42	105
43	0
44	132
45	180
46	0
47	0
48	336
49	0
50	75
51	102
52	156
53	0
54	108
55	66
56	168
57	114
58	0
59	0
60	660
61	0
62	0
63	504
64	192
65	0
66	132
67	0
68	204
69	138
70	420
71	0
72	504